138892-08-7

Basic information

• Product Name: L-Valine, N-(diphenylmethylene)-, methyl ester
• CAS NO: 138892-08-7
• Molecular Formula: C19H21NO2
• Molecular Weight: 295.381
• Mol File: 138892-08-7.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: L-Valine, N-(diphenylmethylene)-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: L-Valine, N-(diphenylmethylene)-, methyl ester(138892-08-7)
• EPA Substance Registry System: L-Valine, N-(diphenylmethylene)-, methyl ester(138892-08-7)

Safety Data

• Hazardous Substances Data: 138892-08-7(Hazardous Substances Data)

Upstream product

• 1013-88-3 Benzophenone imine 
• 4070-48-8 L-Valine methyl ester 
• 5619-05-6 DL-valine methyl ester hydrochloride 

Downstream Products

• 72-18-4 L-valine 
• 16652-76-9 L-valine benzyl ester p-toluenesulfonate salt 
• 138892-14-5 (S)-2-(Benzhydrylidene-amino)-3-methyl-butyric acid benzyl ester 
• 138892-15-6 (S)-2-(Benzhydrylidene-amino)-3-methyl-butyric acid isopropyl ester 

Relevant articles and documents

A convenient method for the enantiomeric separation of α-amino acid esters as benzophenone imine schiff base derivatives

A convenient liquid chromatographic method for the separation of α-amino acid esters as benzophenone Schiff base derivatives on coated chiral stationary phases (CSPs) (Chiralcel OD-H, Chiralcel OD, Chiralpak AD-H, Chiralpak AD, and Chiralpak AS) or covalently immobilized CSPs (Chiralpak IA, Chiralpak IB, and Chiralpak IC) derived from polysaccharide derivatives is described. Benzophenone imine derivatives of α-amino acid esters were readily prepared by stirring benzophenone imine and the hydrochloride salts of α-amino acid esters in 2-propanol. The chromatographic separations were conducted at a flow rate 1.0 mL/min and a detection wavelength of 254 nm; 0.5% 2-propanol/hexane (v/v) was used on CSPs. In general, the resolution of Chiralpak IC was superior to those of the other CSPs. In addition, the resolutions of other arylimine derivatives of α-amino acid esters and the effects of different mobile phases on the enantiomeric separation of α-amino acid esters as benzophenone imine derivatives on Chiralpak IC were investigated.